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laars rhch2400

Discussion in 'Commercial' started by refrigerationtech, Jan 3, 2018.

  1. refrigerationtech

    refrigerationtech Nut Case!

    Messages:
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    Location:
    Cold Place
    ok I have issue with setup where I found blower defective. replaced but noisy on firing. I checked the air and at high its 5"wc and manual says 4.5:wc. laars says 3.5" wc. I not to touch the fuel according to the tech. anyone set one these up? how do I bring the 5" wc down? so far I got miss info that maybe I have leaking gaskets? seals?
     
  2. Zman

    Zman Hanging by a Thread

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    I'm thinking the Gas/Air ratio is controlled through the logic board,in which case,must consult Laars to adjust.
     
  3. pintofstout

    pintofstout New Member

    Messages:
    1,563
    Location:
    Olean, NY
    It can be hard to tell if it's the inducer, if it's the combustion, or the water itself.

    The water, if pressure is too low, flow too low, too high, whatever... Can be very loud and very misleading. I would have bet ten thousand dollars this last one was a noisy inducer, until 5 pounds of water pressure made it disappear instantly.


    Sent from my iPhone using Tapatalk
     
  4. refrigerationtech

    refrigerationtech Nut Case!

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    Location:
    Cold Place
    i still have not found it but I going to tear it down again and see what I find
     
  5. Zman

    Zman Hanging by a Thread

    Messages:
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    Location:
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    Is or was there a restrictor plate behind the old inducer,that got missed during the swap out?